Instruction manual for liquid turbine flowmeter

NegotiableUpdate on 04/21

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Overview

Liquid turbine flowmeter is a precision flow measurement instrument that can be used to measure liquid flow and total amount when paired with corresponding flow integrator instruments. Liquid turbine flow meters are widely used for measurement and control in petroleum, chemical, metallurgical, scientific research, and other fields. Equipped with hygienic liquid turbine flow meters for pharmaceuticals. The integrated liquid turbine flowmeter is explosion-proof and displays the total flow rate, instantaneous flow rate, and flow rate percentage. Using long-lasting lithium, the single function accumulator can last for more than 5 years, and the multifunctional display can last for more than 12 months. Specification parameters of liquid vortex flowmeter:

Product Details

Specification parameters of liquid vortex flowmeter:

Type spectrum specification									describe
	SC-								Turbine Flowmeter
medium		S							water
		Q							gas
		Y							oil
Medium pressure			1						Low pressure and atmospheric pressure ≤ 2.5MPa
			2						Medium pressure ≤ 6.4MPa
			3						High pressure ≤ 32MPa
medium temperature				1					Room temperature -20 ℃~55 ℃
				2					Medium temperature -20 ℃~120 ℃
				3					High temperature -20 ℃~180 ℃
Explosion proof grade					1				Common
					2				Explosion proof type
					3				Intrinsically safe type
Output						0			no-output
						1			Frequency output
						2			4-20mA output
						3			1-5V output
Display mode							0		no display
							1		local display
caliber								-010	Φ10
								-015	Φ15
								-025	Φ25
								…	…
								-200	Φ200

Precautions for using liquid vortex flowmeter:

IfVortex FlowmeterIf there are viscous particles in the measured fluid, they will gradually accumulate on the upstream surface of the vortex generator in the flowmeter, causing changes in its shape and flow coefficient. Therefore, attention should be paid to cleaning during the process. The influence of temperature changes on the geometric changes of the measuring body consists of two parts: one is caused by changes in the width of the vortex generating body, and the other is caused by changes in the internal flow of the pipeline. As a result, we have made adjustments to the K coefficient. Some vortex flowmeters have implemented fixed temperature correction and real-time temperature correction to effectively avoid the impact of temperature.

Advantages and disadvantages of liquid vortex flowmeter:

1) Not suitable for measuring fluid flow rates below Reynolds number.

2) The straight pipe section should be longer. Because the "vortex flowmeter" is a velocity flowmeter, the stability of vortex separation is affected by the velocity distribution, so it is necessary for straight pipe sections.

3) The instrument coefficient is relatively low compared to similar measuring instruments.

4) Lack in multiphase flow fluids. Vortex Flowmeter

Internal connection diagram of liquid vortex flowmeter:

Installation specification for liquid vortex gas flowmeter:

1) Ensure that the flow meter measures at full capacity.

2) Suggest the flowmeter to be vertical, allowing the liquid to pass through the instrument from bottom to top.

3) The flowmeter is installed throughout the high-pressure zone to ensure a certain back pressure.

4) Ensure the required front and rear straight pipe sections for the flowmeter.

5) The flowmeter should be installed downstream of the pump and upstream of the valve.

6) The inner diameter of the pipeline must be slightly larger than 2mm or equal to the inner diameter of the flow meter.

(7) Pay attention to the instruments when measuring steam.